In the most recent issue of Nintendo Power, an interview with Christian Svensson and Brett Elston reveals that Capcom of America is planning on getting all six of the original NES Mega Man games available on the Nintendo 3DS eShop's Virtual Console. Apparently, there have been some hurdles getting the games over, but they're working on solving that problem, according to the interview.
With Japan already up to Rockman 4 (and perhaps Rockman 5 pretty soon), and Europe recently receiving Mega Man, it's probably certain that North America will see these releases as well. One has to wonder what the issues are, but truthfully I wouldn't worry too much.